Automatic height of the webview - xamarin.forms

Question

I have a xamarin forms application and I have inserted a webview inside the layout stack, the problem is that I have multiple pages and in each page the length of the content is different from the others.
I wanted to ask if there was a way to have the webview automatically adjust the height.
I have read other similar questions on the site, but I admit they seemed confusing to me.
This is my code xaml
<ContentPage.Content>
<StackLayout Padding="0" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" Spacing="0" BackgroundColor="White">
<WebView
x:Name="wvSite"
VerticalOptions="FillAndExpand"
HeightRequest="2300" />
</StackLayout>
</ContentPage.Content>

Answer 1

You could reset the webview height according to the content height when loading page finished via custom renderer.
Android:
[assembly: ExportRenderer(typeof(WebView), typeof(CustomWebViewRenderer))]
namespace App1.Droid
{
public class CustomWebViewRenderer : WebViewRenderer
{
public CustomWebViewRenderer(Context context) : base(context)
{
}
protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.WebView> e)
{
base.OnElementChanged(e);
Control.SetWebViewClient(new CustomWebViewClient(e.NewElement));
}
}
internal class CustomWebViewClient : Android.Webkit.WebViewClient
{
private WebView webView;
public CustomWebViewClient(WebView webView)
{
this.webView = webView;
}
public async override void OnPageFinished(Android.Webkit.WebView view, string url)
{
if (webView != null)
{
int i = 10;
while (view.ContentHeight == 0 && i-- > 0)
await System.Threading.Tasks.Task.Delay(100);
webView.HeightRequest = view.ContentHeight;
}
base.OnPageFinished(view, url);
}
}
}
iOS:
[assembly: ExportRenderer(typeof(WebView),
typeof(CustomWebviewRenderer))]
namespace App1.iOS
{
public class CustomWebviewRenderer : WkWebViewRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
NavigationDelegate = new CustomWebviewNavigationDelegate();
}
}
internal class CustomWebviewNavigationDelegate : WKNavigationDelegate
{
[Export("webview:didFinishNavigation:")]
public override void DidFinishNavigation(WKWebView webView, WKNavigation navigation)
{
//base.DidFinishNavigation(webView, navigation);
webView.Frame = new CoreGraphics.CGRect(0, 0, webView.ScrollView.ContentSize.Width, webView.ScrollView.ContentSize.Height);
}
}
}